Drop shaft for hand brakes



S. J. STRID DROP SHAFT FOR HAND BRAKES March 8, 1927.

Filed- May 2 1925 2 Sheets-Sheet l' /N VEA/TOR 5 VEN JUL/us 5 r/e/ 9' 'rrvs arch 8 7 s. J. sTRlD DRQP SHAFT FOR HAND BRAKES Filed Mayv 2, 1925 2 Sheets-Sheet 2 HMI II n m-h v m 1 .PIII lip Q: 22T M 11| 114.: |fl|| 2 l |.\||1| 2 2 Patented Mar. 8, 1927.

UNITED STATES 1,520,141 vPIVIENT oFFICE.

svnN JULIUS s'rRID, or CHICAGO, ILLINOIS, ASsIGNon To FRED MATIIEWS, or

CHICAGO, ILLINOIS.

DROP SHAFT non HAND BRAKES.

Application led May 2,

My present invention relates to hand brake mechanism for railway cars and more pendable support for the brake shaft when the latter is in an elevated position as inV normal use, and this support may be readily manipulated to permit the lowering of the shaft and hand wheel to the desired position whenever it is necessary to depress or drop the same. depressed or lowered position the support will lean or rest against the side of the shaft so that whenever the shaft is raised to vits normal or intended position, or slightly above such position the support will automatically drop by gravitation acrossv the lower end of the shaft, thus rendering the device proof against careless operation.

In connection with my specially designed adjustable support for the brake shaft, I have provided a novel disposition and mounting for the usual ratchet wheel and pawl, and I have also provided a uniquely designed stirrup or step upon :which the shaft support is carried and which stirrup or step is utilized for the mounting of a brake gearing such as disclosed in United States Letters Patent No. 1,508,564 issued September 16, 1924, for a gearing.

I prefer to carry out my invention in substantially the following manner, reference being made to the accompanying drawings that form a part of this specification.

In the drawings Figure 1 is a vertical side elevation of my invention showing the same applied to the end of a flat car.

Figure 2 is a vertical end elevation of the structure illustrated in Figure 1.

Figure 3 is a vertical longitudinal section taken on line 3 3 of Figure 2.

Figure et is a horizontal or transverse section taken on line 4-4 of Figure 3 and looking downwardly in the direction of the arrows.

The end-sill of the car underframe is designated by the numeral 10, the floor as 11, and the segmental shaped depression or relVhen the shaft is in av 1925. Serial No. 27,587.

cess in the floor for the accommodation of the hand wheel, as 12. n The hand-wheel 13, is of theusual type, as is also the brakeshaft or mast 14, the latter being preferably of rectangular shape with its longitudinal corners chamfered as illustrated in Fig. 4. The end-sill 10 is a channel beam with the web vertically disposed and just below the upper flange the web is provided with a horizontally elongated slot 15 in which the ratchet element 16 is disposed, and a castmetal bearing bracket 17 is secured to the outer face of the sill just below the slot 15 to assist in supporting the ratchet element and through which the shaft or mast is rotatable and may also be moved longitudinallywhenever raised or lowered. The pawl or dog 9 for cooperating with the ratchet 16 is pivotably mounted upon the bracket 17 as shown in Fig. 2. The ratchet element 16 is provided with an aperturethrough its center that is a counter-part of the crosssectional contour of the shaft uor mast so that the ratchet element may be rotated with the shaft or mast but will permit the latter to be moved transversely through it. v

A triangular shaped brace 18, the edges of which are longitudinally ianged as indicated by dotted lines Fig.` 1 is secured to the rear face of end sill l0 by means of one of the bracket flanges and said bracket extends away from the sill at substantially a right-angle thereto. The vstirrup is a hollow cast structure formed preferably in two sections that are bolted or riveted toct 18 has secured to it the'horizontal and laterally extended member 19 of the upper half-member or section of the brake shaft stirrup. This upper stirrup section is of substantially inverted U-shape when viewed from the end of the car as seen in Fig. 2, the horizontal web 20 thereof being disposed under the lower flange of sill 10 and extends outwardly therefrom a short distance as seen in Fig. 1. Depending `parallel lianges 21 extend downwardly? from the ends of plate 20 and bracing lugs 22 extend upwardly from plate 20 in front of the sill 1() and are bolted or riveted thereto. The rear portion of the fiat member or eXtension 19 is disposed belowfthe horizontal basal flange of the triangular bracket 18 and is bolted or riveted thereto. .The lower section of the stirrup comprises a lhorizontal member 23? disposed paralleh with thevrplate 2O ot the upper section and at its ends is provided With'upstandingwflanges 24 that overlap and are secured to the .parallel plates 2l of the upper section, th^us"fo`i"`ming a struct-ure ot' rectangular shape as seen in Fig. 2 of the drawings. An aperture 25 is formed in the plate 23 of 'the- -lower section of a diameter slightly greater than the Yfdiagonal@dimensionefot the brake; shaft or vmafstlv 14' which is -rotatably mounted 'therein 'iandisguide'd' at its lower endther'eby. A ysimilarly bored 'bearing 26 isj provided in '-fthe plate' of the uppersection of thestirrup.

Dependingfrom the lunder"surface ot V11plate 23 lisa box-like 'structure '27 otrectan- 'gular shape iny cross *section and which' Ais "i opnf at 'itsfb'ottoin The-l lower' vend of the 20 provided withy 'horizontal inwardly extendj-'ing'langes'fQSl that f are 'spaced Vapart horiZontally-f so lvlasto lprovidea Vrecess A29 that 'i lpermits"the shaft or ina'st y14:A toV be vvrot-ated without?interference when the* v`latter is in a lwer -ior f dropped f position. These flanges li'rovidestopsE or' shelves-'f fory 'si'ipporting "fthe-outer or freei'edge-'otv agate 30 that "drps: bygravitationwhen the lower end of l the lr"shaft or-mast has been raised-above the edge f 'ot' --`the lopened gate.

-Yrectangful'ar y o'tline f 1as `=seen Kiin Fig; 4 and "iupon its v`:portion opposite the flanges V281 it is-v 'provid-edwithffhinge knuckles 3 l through lwhich the 4hi'n'ggepin SQ/pa'sses and is'engaged The gate f is ot in lthe f opposite? side walls' 33 off the box-like *"structure. "Aiingerf or handle Bal projects -Hlaterallytrom 'the edge ofE thegate between rest upon lthe flanges 28 so that I shai'tthe .latter fisrai'sed slightly to ='pe`rinit the raising` or 'opening* off the gate 'and-the' ".s'ihafft thenlo'vvered to the desired position. tIn thisfposition, Fig.- y l *inclinesaggainst the' side ot the shaft through the act-ion if-gravitysofthat' 'Wheneverthe shaft 'is'Y` raised 4"a l distance Vsutlicientl vto per- Y'mit 4:itslower endl to cleart-he then upper 'r'no-rinal-position and rest upon`4 the @flanges In' 'order tol prevent the accidental'w'ith- ''drawal 'fot the *shaft l trom 'the'g'uid'es Aand -vstirrup-a "stoppin 35 is inserted transversely "through its lewer -f'end's'o that litf'projects *upon pposite'fsides otlsaid shaft andwill strike l` 'against the 5 plate 23 "ot the lower stirrupA section 'when the "shaft 1 is elevated "'too "far,

"Anwarmr 'ofi inverted 1 U`-sha'pe 'in' cross lseetion' ektendsfreariv ard'lytrom the box-like structure 27 and z'idja'cent'itsY extremity is ybored transversely to.r provide a bearing 37 for the spindleS otI4 the winding drum 39 upon which is wound the chain or like device extending' to the bralerod or other brake "mechanism bovethe" drumIv 39 the" tl'riven gear() of the gearing device such as shown fing the aforesaid Letters Patent is mounted,

which gear is in mesh with the companion orWdriving-lgcar41 that has an aperture Vthrough its hub which is counter part of shaft or mast 14 sofas''to permitfthe latter "tobe' Imoved vertically through the'zgearfill but' to 'rotate' l'sai'df'gear rwhenever said shaft or mastisrotated to apply' orfrelease"=-the brake.

V'lVhile' I jhave herein "disclosed a: preferred *or* typical 'embodiment-ot my invention it will' befobvious 'that'i modifications V:thereot may be made without departing fromm-'the principles'involved, `and-'I desirerit understood thatchanges Vthat may be 'madeffare contemplated. as vcoming;within?the scopeotl the appended claims.

1. In a railway car"bra'ke' a Ldropshatt inrecliar-iisin"consisting of a vertically movable vsha'tt, 'upper "and-lower Vgear lhousing "members, a stirrupj'on-"t-hev 'lower meinberlin which said shaft is guided, 'La-nd fa gate 'verse in --thel aXis'ot E'saidvfshattrto 5' support the latter lupon itsi lowerfend, 'said ,-Agate 1-'ada-ptedrto 'be raised" to.Z permit i the shaftrto ybe 'moved:"past 'the same.

-Inec`lia11i'sin consisting" off a vertically movable 'lshafty'upper and v*lowerfsgea'r'housing members,y a-f'stirrnp3 on the lower-"finember-in `4which *said ^shatt A'is =:gui"cled, i" and sa agate alndl meansf'proj ecting` -from `said "stirrup 5to f supjfiortfy an'fufnhin'ged 'portion-'fot said gate, the normal'vposition'cf sai'dlgate being'trans- 1verse to'A the axis offisaid f shaft whereby 1 to suppoit4 the saine upon its 'lo-wer f endf-afnd said gate'being" adaptedto' beraised'uponits ylii-ngevfrom said support-ing,` means 4to 'permit the lowerend offtheishaitfto be' rinovedz'lpast the -same f In adro-p* shaft brake mechanism 'ai vertically disposed rotatable-sha-ftadapt-ed to bel nioved frnr anfiupper tof a lowered position; an end-sill havina horizontally elongated slot therein, agpawlfland*ratchetthe `latter otw'hich "is posit-i'oned'partiallyinE said slot and throughwhich Nsaid sha-itVL eitends, hinged gate normally engaged with the lower endrot''said shaft tosupportl the-"saine f in 'its'npper position; and1 a stii-'rup-secured V-'to said end-silldn which said -gate-isiinounted. SignedI at Chicago, inl the countyof- Cook, and State of Illinois, this 10th nday Iof March, 1925.

- SVEN-"Janneman, 

